The invention provides a worm-type profile which is a closed cavity formed by rolling and curling a steel plate for multiple times, the cross section of the worm-type profile is in a worm shape, and the worm-type profile comprises a first cavity, a second cavity and a middle reinforcing rib separating the first cavity from the second cavity; the outer wall of the worm type profile is in a circular arc shape, and only one weld joint extending in the length direction is arranged on the outer wall of the worm type profile. The worm type profile is compact in structure, reasonable in design, high in strength and good in energy absorption effect, and meets the requirement for light weight. The invention further provides a worm type vehicle door anti-collision rod and a machining method thereof, the anti-collision rod specifically comprises a uniform-section anti-collision rod and a variable-section anti-collision rod, and the anti-collision rod and the variable-section anti-collision rod can be selected according to anti-collision requirements and are flexible and changeable. According to the anti-collision rod, multiple times of bending forming of a plate is achieved in a rolling forming mode, the machining difficulty is low, stamping, rolling and welding processes are integrated, efficient utilization of raw materials is achieved, the forming efficiency is high, and the machining cost is reduced.

    本发明提供了一种蜗式型材,是由一块钢板多次辊压卷曲形成的、横截面为蜗形的闭合型腔体,所述蜗式型材包括第一型腔、第二型腔、以及将第一型腔和第二型腔分开的中间加强筋;所述蜗式型材的外壁均为圆弧形,且蜗式型材的外壁仅有一条沿长度方向延伸的焊缝。所述蜗式型材结构紧凑、设计合理、强度高、吸能效果好、符合轻量化要求。本发明还提供了一种蜗式车门防撞杆及其加工方法,所述防撞杆具体包括等截面防撞杆和变截面防撞杆两种形式,可根据防撞需求进行选择,灵活多变。防撞杆采用辊压成型的方式实现板材的多次弯折成型,加工难度低,集成了冲压、辊压和焊接工艺,实现了原材料的高效利用,成型效率高,降低了加工成本。


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    Title :

    Worm-type profile, worm-type vehicle door bumper bar and machining method of worm-type profile and worm-type vehicle door bumper bar


    Additional title:

    一种蜗式型材、蜗式车门防撞杆及其加工方法


    Contributors:
    LI QINGDA (author) / LIU YANG (author) / GAO YANAN (author) / GENG XIAOYONG (author) / WANG WEI (author) / WANG WENBIN (author) / SONG HAIFENG (author)

    Publication date :

    2024-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR





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